From a4c9e44d741b19a752c04d372152be1d7ad8ee46 Mon Sep 17 00:00:00 2001
From: dengwirda <d.engwirda@gmail.com>
Date: Thu, 14 Aug 2025 00:21:04 +1000
Subject: [PATCH 1/2] Allow user-defined paths to NetCDF + OpenMP libs

---
 src/CMakeLists.txt | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 16922f2..016c607 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -59,7 +59,13 @@ endif ()
 
 # try to find netcdf support
 
-find_library (NETCDF_LIBRARY NAMES netcdf)
+if (DEFINED NETCDF_USER_PATH)
+  message (STATUS "Testing user NetCDF path")
+  find_library (NETCDF_LIBRARY NAMES netcdf 
+                PATHS ${NETCDF_USER_PATH} NO_DEFAULT_PATH)
+else ()
+  find_library (NETCDF_LIBRARY NAMES netcdf)
+endif ()
 
 if (NETCDF_LIBRARY)
   message (STATUS "NetCDF library found")
@@ -70,7 +76,13 @@ endif ()
 
 # try to find openmp support
 
-find_package (OpenMP)
+if (DEFINED OPENMP_USER_PATH)
+  message (STATUS "Testing user OpenMP path")
+  find_package (OpenMP 
+                PATHS ${OPENMP_USER_PATH} NO_DEFAULT_PATH)
+else ()
+  find_package (OpenMP)
+endif ()
 
 if (OpenMP_CXX_FOUND AND (OpenMP_CXX_VERSION LESS 3))
   set (OpenMP_CXX_FOUND FALSE)

From e2d9a884454dae3c231d071bc58f85ef3b333bc2 Mon Sep 17 00:00:00 2001
From: dengwirda <d.engwirda@gmail.com>
Date: Fri, 15 Aug 2025 07:37:42 +1000
Subject: [PATCH 2/2] Use OPENMP_USER_PATH to set OpenMP_<lang>_INCLUDE_DIR

- This appears to direct CMAKE's find_package (OpenMP)
  to detect a non-system installation
---
 src/CMakeLists.txt | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 016c607..abfaf75 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -4,9 +4,15 @@ function (cfg_compile_options OPT CFG)
 endfunction ()
 
 include (CheckCXXCompilerFlag)
+include (CheckIPOSupported)
 
 set (CMAKE_CXX_STANDARD 17)
-set (CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE)
+
+check_ipo_supported (RESULT IPO OUTPUT IPO_ERR LANGUAGES C CXX)
+
+if (IPO)
+  set (CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE)
+endif ()
 
 if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU"   OR
     CMAKE_CXX_COMPILER_ID STREQUAL "Clang" OR
@@ -78,8 +84,9 @@ endif ()
 
 if (DEFINED OPENMP_USER_PATH)
   message (STATUS "Testing user OpenMP path")
-  find_package (OpenMP 
-                PATHS ${OPENMP_USER_PATH} NO_DEFAULT_PATH)
+  set (  OpenMP_C_INCLUDE_DIR ${OPENMP_USER_PATH})
+  set (OpenMP_CXX_INCLUDE_DIR ${OPENMP_USER_PATH})
+  find_package (OpenMP)
 else ()
   find_package (OpenMP)
 endif ()
@@ -92,6 +99,7 @@ endif ()
 if (OpenMP_CXX_FOUND)
   message (STATUS "OpenMP library found")
   message (STATUS "OpenMP inc. lib: ${OpenMP_CXX_LIB_NAMES}")
+  message (STATUS "OpenMP inc. lib: ${OpenMP_CXX_LIBRARIES}")
 else ()
   message (STATUS "OpenMP library not found")
 endif ()